It's amazing how much primates behave uncannily like people: Their movements and interactions with one another are so eerily similar to humans, it's hard to deny the presence of evolutionary behaviors.

Such was the case when this couple visited Rajang the Orangutan at the Colchester Zoo. The woman was 37 weeks pregnant, and she wanted to give Rajang a look at her protruding belly. The orangutan was mesmerized by it for awhile, but what it did next was nothing short of amazing – not to mention really, really adorable.